Gate/garage door remote control buttons not transmitting. on 2001 Chrysler LHS

I have trained the gate/garage door remote control buttons per owners manual (got the "successful" fast flashing signals), but the control doesn't seem to be transmitting as neither the gate nor the garage doors will open while using it. I also have a 99 LHS and trained and utilized it with no problem. Any ideas why the signals aren't being transmitted?

Asked by for the 2001 Chrysler LHS